Cody Rhodes has had his legs cut out from under him every time he starts to gain momentum. He was the last IC champion before Owens (and who knows if that's going much longer) that made the belt seem important and carried it like a star.
Barrett is the total package of everything Vince should want, but he's British so no world title for him sadly. Charismatic as fuck.
Harper is one of the top tier wrestlers in the WWE, and one of the best big men alive. Harper vs. Taker would be a fucking great match, mark my words, but we'll never get it. You wanna know something I can GUARANTEE? In this generation of WWE wrestler's memoirs, all the big stars, especially Roman Reigns, are going to dedicate some pages to thanking Harper, because he makes them look good week after week and usually loses to them without complaint.
Kalisto is great, better even, but Hunico/Sin Cara is underrated as hell. I really wish they'd just give him some fucking eyeholes on his mask so he would quit botching, it's worked for the original, botchier Sin Cara down in Mexico.
Becky is in the top tier of women in the WWE in ringwork, charisma, and looks. All around she might be the best total package, but hey my opinion.
Past those five, who are great, you've got guys and gals that are merely good but taken for granted: Swagger, Axel, Viktor (graduate of the Hart Dungeon btw), Simon Gotch, Emma, Summer Rae, and probably some that are escaping me right now.
This is the most talented roster that the WWE has ever had, and it is fucking inexcusable that they are being squandered and through shitty booking are unable to put on entertaining programs.